Testlyn
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Quickstart

1. Create an account

Go to testlyn.io/signup and create a free account. You get 5 runs per month, up to 50 VUs, 5 minutes max — no credit card required.

After signup, you'll be prompted to create an organization. This is the billing unit. One person = one org. Teams share an org.

2. Create a project and test

Inside your org dashboard:

  1. Click New project — give it a name (e.g. my-api).
  2. Inside the project, click New test.
  3. Paste your k6 script into the editor, or use the sample below.
import http from 'k6/http';
import { sleep, check } from 'k6';

export const options = {
  vus: 10,
  duration: '30s',
};

export default function () {
  const res = http.get('https://httpbin.org/get');
  check(res, { 'status is 200': (r) => r.status === 200 });
  sleep(1);
}

3. Run the test

Click Run. Within 5 seconds, you'll see live p95 latency and error rate in the chart.

When the run completes:

  • The chart freezes at the final data point.
  • A Download report button appears — click it to get a PDF summary.
  • If you have a paid plan, a daily AI digest will include this run in tonight's summary.

4. Automate via API

Every action in the UI is also available via REST API. See API Authentication for how to get an API key.

curl -X POST https://api.testlyn.io/v1/tests/YOUR_TEST_ID/runs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json"

This returns a run object with a run_id you can poll for status.